diff --git a/ext-includes/vpu_wrapper.h b/ext-includes/vpu_wrapper.h
index 8c4803c..22c2aac 100644
--- a/ext-includes/vpu_wrapper.h
+++ b/ext-includes/vpu_wrapper.h
@@ -269,6 +269,7 @@
 	int nAdaptiveMode;
 	void* pAppCxt;			/*reserved for future application extension*/
     int nSecureMode;
+    int nSecureBufferAllocSize;
 } VpuDecOpenParam;